Installation - Part - enphase IQ Gateway Commercial 2 Quick Install Manual

INSTALLATION — Part 1
It is a best practice to complete Installation Part 1 before installing Enphase
microinverters.
For steps 2 and 3, refer to the wiring diagram on the next page.
1
Choose a location for the IQ Gateway Commercial 2
WARNING: Risk of equipment damage. When installing the
IQ Gateway Commercial 2 in an enclosure, choose area for
installation where ambient temperature does not exceed
46ºC (115ºF).
A ) Install the IQ Gateway Commercial 2 near the main load center or PCC
(point of common coupling) and consider the length of the Production CT
leads (5 feet) when choosing the location. Do not extend the leads of the
Production CTs.
B ) Install the IQ Gateway Commercial 2 in a protected dry space in an
NRTL Certified, NEMA type 3R (or better) enclosure with conduit attach-
ment. Use an appropriately rated enclosure if hard wiring the IQ Gateway
Commercial 2 indoors.
NOTE: Metallic enclosures may impair Wi-Fi signal strength.
C ) Mount the IQ Gateway horizontally using the included DIN rail.
2 Wire the IQ Gateway Commercial 2 for power and
metering
The IQ Gateway Commercial 2 uses terminal blocks for power and metering
connections. Refer to the wiring diagram on the following page when perform-
ing this step.
You must install three solid-core current transformers (CTs) for production
metering. Consumption monitoring is optional and requires that you order
and install three additional split-core CTs. Use a protected route in conduit for
the CT wires from the main load center to the IQ Gateway Commercial 2. The
Consumption CT leads are 13 feet long. If you need to extend the leads, refer
to the IQ Gateway Commercial 2 Installation and Operation Manual at
com/support. Do not extend the leads of the Production CT.
DANGER! Risk of electric shock. Always de-energize circuits
before wiring for power and CTs.
DANGER! Risk of electrocution! Do not install CTs when cur-
rent is flowing in the sensed circuit. Always install CT wires
in the terminal blocks before energizing the sensed circuit.
NOTE: When installing CTs, it is important to match CT and sense
voltage phases. Be sure to consistently identify the three AC lines at
three points: the main load center feed, the IQ Gateway, and the solar
production circuit breaker. Wire colors (typically black, red, and blue)
may not always consistently identify L1, L2, and L3. If in doubt, use a
multimeter to check.
NOTE: Because of variance in load center design and main power feed,
there may not always be enough space to install consumption metering
CTs. See our technical brief, Assessing a Site for Installing Consumption
CTs, at enphase.com/support.
A) Before running the CT wires through the conduit, use colored tape to
mark each of the CTs and the free ends of its wires, marking each with a
different color. You can run multiple CT wires through a single conduit.
B ) Wire the IQ Gateway Commercial 2 for power:
Use a three-pole circuit breaker of up to 20 A (maximum) for the sup-
•
ply wiring.
Make sure supply wiring is 14 AWG or larger copper rated at 75ºC or
•
better.
Use a screwdriver to loosen the screw on the terminal block door and
•
open the door.
Flip open the terminal block door and wire the line and neutral con-
•
ductors as shown: Connect Line 1 to L1, Line 2 to L2, Line 3 to L3, and
Neutral to N. Tighten to 10.5 in-lbs (1.2 N m).
2
NOTE: Only run active conductors of the same phase through each
CT. Each CT can monitor multiple active conductors.
C ) Install the Production CTs on active phases as required:
Locate the arrow on the CT label.
•
To monitor production on Line 1:
•
Connect the white wire to the white "P1" terminal and the blue
-
wire to the blue "P1" terminal.
Pass Line 1 of the solar production circuit through the CT with the
-
arrow pointing toward the load (away from the solar array).
To monitor production on Line 2:
•
Connect the white wire to the white "P2" terminal and the blue
-
wire to the blue "P2" terminal.
Pass Line 2 of the solar production circuit through the CT with the
-
arrow pointing toward the load (away from the solar array).
To monitor production on Line 3:
•
Connect the white wire to the white "P3" terminal and the blue
-
wire to the blue "P3" terminal.
Pass Line 3 of the solar production circuit through the CT with the
-
arrow pointing toward the load (away from the solar array).
Tighten all connections to 5 in-lbs (0.6 N m).
•
D ) Install the Consumption CTs on active phases as required:
Locate the arrow on the CT label.
•
Make sure that the AC mains wire(s) are de-energized until you have
•
secured the CT wires in the terminal blocks.
To monitor consumption on Line 1:
•
Connect the white wire to the white "C1" and the blue wire to the
-
blue "C1" terminal.
Clamp the CT on the main supply Line 1. When the Consumption
-
CT is on Line 1 conductor, the arrow must point toward the load
(away from the grid).
To monitor consumption on Line 2:
•
Connect the white wire to the white "C2" terminal and the blue
-
wire to the blue "C2" terminal.
Clamp the CT on the main supply Line 2. When the Consumption
-
CT is on Line 2 conductor, the arrow must point toward the load
(away from the grid).
To monitor consumption on Line 3:
enphase.
•
Connect the white wire to the white "C3" terminal and the blue
-
wire to the blue "C3" terminal.
Clamp the CT on the main supply Line 3. When the Consumption
-
CT is on Line 3 conductor, the arrow must point toward the load
(away from the grid).
Tighten all connections to 5 in-lbs (0.6 N m).
•
3
Energize and update the IQ Gateway Commercial 2
A ) Close the terminal block door, and secure it with the screw.
B ) Turn on the circuit feeding the IQ Gateway Commercial 2.
The update may take up to 20 minutes. The IQ Gateway reboots several
times during the update, and the LEDs light up in varied sequences until
the update is complete.
WARNING: Do not remove power from the IQ Gateway
Commercial 2 during the software update.
All four LEDs flash red during boot-up (approximately 3 minutes). When
boot-up is complete, the Device Communications LED
indicating that devices are not yet detected.
Launch the Enphase Installer App and start system
4
activation
A ) Launch the Enphase Installer App on your tablet or mobile device.
To create an activation for a new system, tap the Plus button on the
bottom right corner of the screen.
B ) Tap System Details to enter the required information.
C ) Complete the system activation in the Enphase Installer App by filling
in the details.
The "System created successfully" message will display at the bottom
of your screen, and system details will appear now as complete.
lights solid red,